American National Standard for gas-fired room heaters.
Edition: [20th ed.].
Publisher: Secretariat, American Gas Association
Published: 1983
Place of publication: Arlington, Va
Language: eng
Subjects: Stoves, Gas -- Standards -- United States.
Notes: Cover title.
"Approved September 23, 1983, American National Standards Institute, Inc."
"ANSI Z21.11.1-1983."
Table of contents: title: v. 1. Vented room heaters.